3663662605105 has 8 divisors (see below), whose sum is σ = 4396447673064. Its totient is φ = 2930895052800.

The previous prime is 3663662605081. The next prime is 3663662605123. The reversal of 3663662605105 is 5015062663663.

It can be written as a sum of positive squares in 4 ways, for example, as 363107477056 + 3300555128049 = 602584^2 + 1816743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3663662605105 is a prime.

It is a super-3 number, since 3×3663662605105³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3914266 + ... + 4759075.

It is an arithmetic number, because the mean of its divisors is an integer number (549555959133).

Almost surely, 2^{3663662605105} is an apocalyptic number.

It is an amenable number.

3663662605105 is a deficient number, since it is larger than the sum of its proper divisors (732785067959).

3663662605105 is an equidigital number, since it uses as much as digits as its factorization.

3663662605105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8757827.

The product of its (nonzero) digits is 3499200, while the sum is 49.

The spelling of 3663662605105 in words is "three trillion, six hundred sixty-three billion, six hundred sixty-two million, six hundred five thousand, one hundred five".